The T1 CSU/DSU WAN Interface Card provides full or fractional T1 service; it does not do channelized T1 or ISDN PRI.
The Multi-Flex Trunk (VWIC-1MFT-T1) provides physical layer T1 access. The capabilities of that T1 interface are determined by the host it's plugged into, but in general it does support channelized T1.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...